WO2015127750A1 - Procédé et dispositif de traitement d'adresse ipv6, et appareil relais dhcpv6 - Google Patents

Procédé et dispositif de traitement d'adresse ipv6, et appareil relais dhcpv6 Download PDF

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Publication number
WO2015127750A1
WO2015127750A1 PCT/CN2014/082755 CN2014082755W WO2015127750A1 WO 2015127750 A1 WO2015127750 A1 WO 2015127750A1 CN 2014082755 W CN2014082755 W CN 2014082755W WO 2015127750 A1 WO2015127750 A1 WO 2015127750A1
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WO
WIPO (PCT)
Prior art keywords
ipv6
address
ipv4
option
dhcpv6
Prior art date
Application number
PCT/CN2014/082755
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English (en)
Chinese (zh)
Inventor
王翠
孟伟
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US15/121,064 priority Critical patent/US20160380963A1/en
Priority to EP14883705.7A priority patent/EP3113457A4/fr
Priority to JP2016554585A priority patent/JP2017506862A/ja
Publication of WO2015127750A1 publication Critical patent/WO2015127750A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H04L61/2503—Translation of Internet protocol [IP] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/167—Adaptation for transition between two IP versions, e.g. between IPv4 and IPv6
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H04L61/2503—Translation of Internet protocol [IP] addresses
    • H04L61/251—Translation of Internet protocol [IP] addresses between different IP versions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5007—Internet protocol [IP] addresses
    • H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/659—Internet protocol version 6 [IPv6] addresses

Definitions

  • the present invention relates to the field of communications, and in particular to an IPv6 address processing method and apparatus, a dynamic host configuration protocol v6, a DHCPv6 relay device, and a dynamic host configuration protocol v6 DHCPv6 server.
  • IP Internet protocol
  • IPv6-to-IPv4 network address translation (IPv6) protocol and the IPv6-to-IPv4 domain name server (DNS) technology are used to solve the IPv6 and IPv4 exchanges in this scenario.
  • IPv6-to-IPv4 network address translation (IPv6) protocol and the IPv6-to-IPv4 domain name server (DNS) technology are used to solve the IPv6 and IPv4 exchanges in this scenario.
  • DNS domain name server
  • NAT64 is a stateful network address and protocol conversion technology. Generally, it only supports IPv6 network-side users to initiate connections to access IPv4 side network resources. However, the NAT64 also supports the static mapping between the IPv6 network and the IPv4 network. NAT64 can implement IPv6 and IPv4 networks under the Transmission Control Protocol (TCP), User Data Protocol (UDP), and Internet Control Message Protocol (ICMP) protocols. Address and protocol conversion.
  • TCP Transmission Control Protocol
  • UDP User Data Protocol
  • ICMP Internet Control Message Protocol
  • FIG. 1 is a schematic diagram of a common application scenario of NAT64 and DNS64 in the related art. As shown in FIG. 1, a DNS64 server (Server) and a NAT64 router (Router) are completely independent parts.
  • DNS64 generally uses this prefix to synthesize IPv4 addresses to IPv6 addresses.
  • the prefix is also used as the NAT64 conversion prefix.
  • the traffic matching the prefix is translated by NAT64.
  • the prefix is represented as pref64::/n, where pref64 identifies the NAT64 prefix used to synthesize the IPv6 address, and n identifies the prefix length of the NAT64.
  • the prefix can be deployed according to the actual network. Flexible network configuration.
  • the prefix length supports: 32, 40, 48, 56, 64 or 96, and the prefix conversion rules for each length are not identical.
  • the IPv6 Only User initiates a connection to access a normal IPv6 website
  • the traffic will match the IPv6 default route and be forwarded directly to the IPv6 Router for processing.
  • the IPv6 Only User initiates the connection to the IPv4 single protocol stack server
  • the IPv6 Only User cannot obtain the IPv6 address information corresponding to the destination IPv4 server address, so the DNS request is sent to the DNS64 server, and the IPv4 address corresponding to the IPv4 server is found.
  • the DNS64 Server is required for prefix synthesis, that is, the A record and pref64::/n are combined into an AAAA record, and returned to the IPv6 Only User.
  • the traffic of the pref64::/n network segment will be forwarded to the NAT64 router to implement IPv6 and IPv4 address and protocol conversion, and access resources in the IPv4 network.
  • the DNS64 is required to work with the NAT64.
  • the DHCPv6 server is required to deliver the IPv6 address of the DNS64 server. In the scenario where the DNS64 is not deployed on the network and the DNS is still in the IPv4 network, NAT64 cannot complete IPv6 independently. /IPv4 exchange visits.
  • the client device cannot obtain the IPv6 address corresponding to the DNS server. Further, even if the client obtains the IPv6 address corresponding to the DNS server, the client device cannot obtain the AAAA record corresponding to the destination IPv4 server, so it works independently for NAT64. In the case of the situation, it is necessary to have a corresponding technical solution presented to solve the problem in this scenario.
  • PCP Port Control Protocol
  • the PCP client obtains information such as pref64::/n, IPv6 Suffix, and IPv4 Prefix List from the NAT64-Controlled PCP Server.
  • the technical solution requires the user and the NAT64 device to enable the PCP protocol, and the PCP protocol itself is not widely used in the network.
  • a personal PC is required to upgrade the operating system to support the PCP protocol, which obviously has a wider coverage and is more difficult. Further, in the above FIG.
  • the DNS64 server can be configured to cooperate with the NAT64 to solve the scenario in which the original DNS server is still deployed in the IPv4 network; but for the existing IPv4 network, in addition to the DNS server, the corresponding There are: a log server, a cookie server, a resource locating server, a policy filtering server, etc., and these server parameters are sent to the IPv4 client device through the DHCPv4 option; and, in turn, how to obtain the network in the IPv4 network for the IPv6-0nly client device The parameters, but there is no universal solution to enable the IPv6-0nly client device to obtain the IPv6 address of each IPv4 server.
  • the IPv6 version of the Dynamic Host Configuration Protocol is designed to handle the assignment of IPv6 addresses, IPv6 prefixes, and other network information to client devices.
  • Other network information includes DNS servers, log servers, cookie servers, and resources. Locate the server, policy server, and more.
  • the corresponding IPv6 prefix needs to be combined with the IPv6 address corresponding to the corresponding IPv4 server.
  • the IPv6 prefixes of the respective IPv6 prefixes may be the same or different. .
  • the present invention provides an IPv6 address processing method and apparatus, a dynamic host configuration protocol v6 DHCPv6 relay device, and a dynamic host configuration protocol v6 DHCPv6 server, to at least solve the related technologies in the IPv6/IPv4 network interworking process.
  • an IPv6 address processing method including: obtaining an IPv4 information option whose address field is an IPv4 address in an information option of an IPv6 message; acquiring an IPv6 prefix corresponding to the IPv4 information option; The IPv4 address in the IPv4 information option and the IPv6 prefix synthesize an IPv6 address.
  • the IPv6 packet includes at least one of the following: a DHCPv6 relay response message generated by the DHCPv6 relay device from the dynamic host configuration protocol v6 DHCPv6 server; and a direct response client from the DHCPv6 server.
  • DHCPv6 response packet of the end device Preferably, the IPv4 information option of the IPv6 address in the information option of the IPv6 packet includes at least one of the following: multiplexing the IPv6 option in the DHCPv6 message, where the multiplexed IPv6 option carries the IPv4 Address: An extended DHCPv6 message option, where the extended DHCPv6 message option carries the IPv4 address.
  • the acquiring the IPv6 prefix corresponding to the IPv4 information option includes at least one of: obtaining the IPv6 prefix corresponding to the IPv4 information option from local configuration information of a network device that synthesizes the IPv6 address; Obtaining the IPv6 prefix from a server storing the IPv6 address prefix.
  • the method further includes: generating, according to the synthesized IPv6 address, an IPv6 packet carrying an IPv6 address information option. Sending the generated IPv6 packet to the client device.
  • an IPv6 address processing apparatus including: a first obtaining module, configured to obtain an IPv4 information option in which an address field of an IPv6 message is an IPv4 address; And being configured to obtain an IPv6 prefix corresponding to the IPv4 information option.
  • the first synthesizing module is configured to synthesize an IPv6 address according to the IPv4 address in the IPv4 information option and the IPv6 prefix.
  • the second obtaining module includes at least one of the following: a first obtaining unit, configured to obtain, according to local configuration information of a network device that synthesizes the IPv6 address, the IPv6 prefix corresponding to the IPv4 information option; And a second obtaining unit, configured to acquire the IPv6 prefix from a server that stores the IPv6 address prefix.
  • the apparatus further includes: a first generating module, configured to generate an IPv6 packet carrying the IPv6 address information option according to the synthesized IPv6 address; and a first sending module, configured to generate the IPv6 packet Sent to the client device.
  • a dynamic host configuration protocol v6 DHCPv6 relay device comprising the apparatus of any of the above.
  • a Dynamic Host Configuration Protocol v6 DHCPv6 server is provided, comprising the apparatus of any of the above.
  • an IPv4 information option in which an address field of an IPv6 message is detected as an IPv4 address is acquired; an IPv6 prefix corresponding to the IPv4 information option is obtained; and an IPv4 address in the IPv4 information option is used according to the IPv4 address
  • the IPv6 prefix is used to synthesize an IPv6 address, which solves various problems that occur when some servers are still deployed in an IPv4 network in the IPv6/IPv4 network interworking process, and when the NAT64 service is upgraded or all upgraded to an IPv6 network later, the network configuration is adjusted.
  • FIG. 1 is a schematic diagram of a common application scenario of NAT64 and DNS64 in the related art
  • FIG. 2 is a flowchart of an IPv6 address processing method according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram of an IPv6 address processing apparatus according to an embodiment of the present invention
  • 4 is a block diagram showing a preferred structure of an acquisition module 34 in an IPv6 address processing apparatus according to an embodiment of the present invention
  • FIG. 5 is a block diagram showing a preferred structure of an IPv6 address processing apparatus according to an embodiment of the present invention
  • FIG. 6 is a dynamic host according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram of a dynamic host configuration protocol v6 DHCPv6 server according to an embodiment of the present invention;
  • FIG. 8 is a structural block diagram of an apparatus for synthesizing an IPv6 address according to an embodiment of the present invention
  • 9 is a block diagram of a preferred structure of an apparatus for synthesizing an IPv6 address according to an embodiment of the present invention
  • FIG. 10 is a block diagram showing a preferred structure of an apparatus for synthesizing an IPv6 address according to an embodiment of the present invention
  • FIG. 11 is a synthetic IPv6 according to an embodiment of the present invention.
  • FIG. 12 is a flowchart of a method for synthesizing an IPv6 address according to an embodiment of the present invention
  • FIG. FIG. 14 is a schematic diagram of a system for synthesizing an IPv6 address according to a preferred embodiment of the present invention;
  • FIG. 15 is a schematic diagram of a system for synthesizing an IPv4 address of an IPv4 network server according to a preferred embodiment of the present invention.
  • BEST MODE FOR CARRYING OUT THE INVENTION the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
  • FIG. 2 is a flowchart of an IPv6 address processing method according to an embodiment of the present invention. As shown in FIG.
  • Step S202 Obtaining an IPv6 packet
  • the address field in the information option is an IPv4 information option of the IPv4 address
  • Step S204 obtaining an IPv6 prefix corresponding to the IPv4 information option
  • Step S206 synthesizing the IPv6 address according to the IPv4 address and the IPv6 prefix in the IPv4 information option.
  • the IPv6 address is synthesized according to the intercepted IPv4 address and the IPv6 prefix, which not only solves various problems that some servers still deploy in the IPv4 network during the IPv6/IPv4 network interworking process in the related art, and in NAT64.
  • the network device When the service is upgraded or upgraded to the IPv6 network in the later stage, the network configuration adjustment is inflexible, and the network maintenance is complicated. In this way, the network device synthesizes the IPv6 address by itself, effectively reducing the complexity of system maintenance and enhancing the transition from IPv4. The effect of convenience to IPv6.
  • the IPv6 packets used for synthesizing the IPv6 address may be different according to the network device that synthesizes the IPv6 address.
  • the DHCPv6 server may be a DHCPv6 server that responds to the DHCPv6 relay device generated by the DHCPv6 relay device. The relay response message; or a DHCPv6 response message from the DHCPv6 server to directly respond to the client device.
  • the IPv6 packet when the network device that synthesizes the IPv6 address is the dynamic host configuration protocol v6, the IPv6 packet may be the dynamic host configuration protocol v6 and the DHCPv6 relay device receives the DHCPv6 from the DHCPv6 server.
  • the IPv6 packet when the network device that synthesizes the IPv6 address is a DHCPv6 server, the IPv6 packet is a DHCPv6 message generated by the DHCPv6 server according to the IPv4 address stored by the DHCPv6 server.
  • the IPv4 address may exist in multiple forms, that is, the IPv4 information option of the IPv6 address information field may be in the form of an IPv4 address.
  • the IPv6 prefix corresponding to the IPv4 information option may be obtained by using at least one of the following methods: obtaining an IPv6 prefix corresponding to the IPv4 information option from the local configuration information of the network device that synthesizes the IPv6 address; Obtain an IPv6 prefix from the server that stores the IPv6 address prefix.
  • the network device that synthesizes the IPv6 address can perform various operations according to the synthesized IPv6 address, for example, generating the IPv6 according to the synthesized IPv6 address. IPv6 packet with the address information option. The generated IPv6 packet is sent to the client device.
  • an IPv6 address processing apparatus is also provided, which is used to implement the foregoing embodiments and preferred embodiments, and has not been described again.
  • the term "module" may implement a combination of software and/or hardware of a predetermined function.
  • FIG. 3 is a structural block diagram of an IPv6 address processing apparatus according to an embodiment of the present invention.
  • the apparatus includes a first obtaining module 32, a second obtaining module 34, and a first synthesizing module 36.
  • the first obtaining module 32 is configured to obtain an IPv4 information option that the address field of the IPv6 packet is an IPv4 address
  • the second obtaining module 34 is connected to the first obtaining module 32, and is configured to obtain an IPv4 information option.
  • FIG. 4 is a block diagram of a preferred structure of the obtaining module 34 in the IPv6 address processing apparatus according to the embodiment of the present invention.
  • the second obtaining module 34 includes at least one of the following: a first obtaining unit 42 and a second acquiring unit. 44.
  • the second acquisition module 34 will be described below.
  • the first obtaining unit 42 is configured to obtain and obtain from the local configuration information of the network device that synthesizes the IPv6 address.
  • FIG. 5 is a block diagram of a preferred structure of an IPv6 address processing apparatus according to an embodiment of the present invention. As shown in FIG. 5, the apparatus includes a first generation module 52 and a first sending module 54 in addition to all the structures shown in FIG. The device will be described below.
  • the first generating module 52 is connected to the synthesizing module 36, and configured to generate an IPv6 packet carrying the IPv6 address information option according to the synthesized IPv6 address.
  • the first sending module 54 is connected to the first generating module 52, and is configured to Send the generated IPv6 packet to the client device.
  • FIG. 5 is a block diagram of a preferred structure of an IPv6 address processing apparatus according to an embodiment of the present invention. As shown in FIG. 5, the apparatus includes a first generation module 52 and a first sending module 54 in addition to all the structures shown in FIG. The device will be described below.
  • the first generating module 52 is connected to the synthesizing module 36, and configured to generate an IPv6 packet carrying the IPv6 address
  • FIG. 6 is a structural block diagram of a dynamic host configuration protocol v6 DHCPv6 relay device according to an embodiment of the present invention.
  • the DHCPv6 relay device 60 includes the IPv6 address processing device 62 of any of the above.
  • FIG. 7 is a structural block diagram of a dynamic host configuration protocol v6 DHCPv6 server according to an embodiment of the present invention.
  • the DHCPv6 server 70 includes the IPv6 address processing device 62 of any of the above.
  • a synthetic IPv6 address scheme is provided, which solves various problems that some servers still deploy in an IPv4 network during IPv6/IPv4 network interworking; and reduces configuration in the network.
  • the method for synthesizing an IPv6 address includes: the intermediate device receives a DHCPv6 Delay-Reply message sent by a DHCPv6 server device, and listens to a network configuration information option in which an address field of each network information option is an IPv4 address; The device obtains the synthetic IPv6 corresponding to each IPv4 network configuration information option. The intermediate device synthesizes the IPv6 address according to the IPv4 address in the network configuration information option and the obtained synthetic IPv6 prefix corresponding to each network configuration information option.
  • the intermediate device can update the packet with the synthesized IPv6 address, generate the corresponding IPv6 address network configuration information option by using the network configuration information option whose address field is the IPv4 address in the option, recalculate the packet length and other information, and forward the packet.
  • a DHCPv6 Reply message is sent to the client device.
  • the network configuration information option carrying the IPv4 address from the DHCPv6 server may multiplex the corresponding IPv6 network configuration information option of the DHCPv6, or add the DHCPv6 IPv4 network server option; when multiplexing the corresponding IPv6 network configuration information option of the DHCPv6
  • the IPv4 address of the IPv4 network server is carried by the IPv6 option.
  • the intermediate device After the intermediate device detects the IPv6 address, the corresponding IPv6 address is generated, and the IPv6 address is updated using the synthesized IPv6 address to calculate the packet and forward the packet to the client device.
  • the Type field When the DHCPv6 IPv4 network server option is added, the Type field must be defined in the option to correspond to the option code Option-code field used by the corresponding network server option to identify the corresponding network server information corresponding to the option.
  • the corresponding IPv6 address is generated, and the DHCPv6 IP V 6 option replaces the received option message, calculates the packet, and forwards the packet to the client device.
  • the intermediate device may obtain the synthesized IPv6 prefix corresponding to each network configuration information option by using the local configuration information, or may obtain the IPv6 prefix from the centralized server through other methods.
  • the synthetic IPv6 prefix corresponding to each network configuration information option may be the same. It can also be different, depending on the actual network deployment.
  • the intermediate device can directly synthesize the IPv6 address of each IPv4 network server and send the synthesized IPv6 address or/and the IPv6 address to the client through the DHCPv6 Reply message. End device.
  • FIG. 8 is a structural block diagram of an apparatus for synthesizing an IPv6 address according to an embodiment of the present invention.
  • the apparatus includes a receiving and listening module 82.
  • the function is the same as the first obtaining module 32 described above
  • the third obtaining module 84 functions with the second acquiring module 34 described above
  • the second combining module 86 isame as the first synthesizing module 36 described above, which will be described below.
  • the receiving and listening module 82 is configured to receive the DHCPv6 Relay-Reply message sent by the DHCPv6 server-side device, and listen to the network configuration information option of the IPv4 address in the network information option in the DHCPv6 Relay-Reply message.
  • a third obtaining module 84 connected to the receiving and listening module 82, configured to acquire a synthetic IPv6 prefix corresponding to each network configuration information option;
  • the second synthesizing module 86 is connected to the obtaining module 84, and configured to synthesize an IPv6 address according to the IPv4 address in the network configuration information option and the obtained synthetic IPv6 prefix corresponding to each network configuration information option.
  • the apparatus includes a calculation and transmission module 92 in addition to all the modules shown in FIG. The generation module 52 and the transmission module 54), the calculation and transmission module 92 will be described below.
  • the calculation and sending module 92 is connected to the second synthesizing module 86, and configured to generate a corresponding IPv6 address network configuration information option by using the synthesized IPv6 address update message and selecting each network configuration information option whose address field is an IPv4 address in the option. Re-calculating the information such as the length of the packet, and forwarding the DHCPv6 Reply message to the client device.
  • the receiving and listening module 82 needs to listen to the corresponding IPv6 network configuration information option of the DHCPv6 address of the IPv4 address, and/ Or you need to listen to the new DHCPv6 IPv4 network server option.
  • This option defines the type Type field, which corresponds to the option code Option-code field used by the corresponding network server option to identify the corresponding network server information corresponding to the option.
  • Figure 10 is based on FIG. 10 is a block diagram showing a preferred structure of an apparatus for synthesizing an IPv6 address according to an embodiment of the present invention. In addition to all the modules shown in FIG. 8, the apparatus further includes an update/delete module 102, which is updated/deleted. Module 102 is described.
  • the update/delete module 102 is connected to the third obtaining module 84 and the second synthesizing module 86, and is configured to update/delete the corresponding synthesized IPv6 prefix when the synthetic IPv6 prefix acquired by the obtaining module 84 is updated/deleted.
  • the synthetic IPv6 prefix information obtained by the third obtaining module 84 may be locally configured by the intermediate device, or may be obtained from the centralized server by using another method.
  • the synthetic IPv6 prefix information acquired by the third obtaining module 84 may be one; It can also be multiple, corresponding to different IPv4 servers, which is determined by the actual network deployment.
  • 11 is a structural block diagram of a system for synthesizing an IPv6 address according to an embodiment of the present invention.
  • the system 110 for synthesizing an IPv6 address includes a DHCPv6 server device 112 and an intermediate device 114 including any of the above-described composite IP address devices;
  • the DHCPv6 server device 112 includes a second generation module 1102 and a second sending module 1104.
  • the DHCPv6 server device 112 is described below.
  • the second generation module 1102 is configured to: after receiving the DHCPv6 Relay-Forwarding message from the intermediate device, generate a DHCPv6 Relay-Reply message carrying the network configuration information option of each IPv4 address.
  • the option is to multiplex the corresponding IPv6 network configuration information option of the DHCPv6, or to add the DHCPv6 IPv4 network server option.
  • the second sending module 1104 is connected to the generating module 1102, and is configured to carry the generated by the second generating module 1102.
  • the DHCPv6 Relay-Reply packet of the network configuration information option of the IPv4 address is sent to the intermediate device. It should be noted that, when the DHCPv6 server device 1102 receives the DHCPv6 message of the client device, the intermediate device 1104 directly performs IPv6 address synthesis of each IPv4 network server locally, and passes the synthesized IPv6 address or/and the IPv6 address.
  • the DHCPv6 Reply packet is sent to the client device. Since the client device does not perceive the IPv4 network, the client device does not need to perform system or/and network upgrades.
  • FIG. 12 is a flowchart of a method for synthesizing an IPv6 address according to an embodiment of the present invention. As shown in FIG. 12, the method includes the following steps: Step S1202: The intermediate device BRAS/NAT64 receives a packet sent by a DHCPv6 server device.
  • the DHCPv6 message is configured to listen to the network configuration information option in the network information option, where the address field is an IPv4 address;
  • Step S1204 The intermediate device acquires the synthetic IPv6 prefix corresponding to each network configuration information option;
  • Step S1206 The intermediate device according to the network configuration information option The IPv4 address and the obtained synthetic IPv6 prefix corresponding to each network configuration information option are combined to synthesize an IPv6 address;
  • Step S1208 The intermediate device updates the packet with the synthesized IPv6 address, and configures each network in which the address field in the option is an IPv4 address.
  • the information option generates the corresponding IPv6 address network configuration information option, recalculates the packet length and other information, and forwards the DHCPv6 Reply message to the client device.
  • the intermediate device receives the network configuration information option carrying the IPv4 address from the DHCPv6 server, and can multiplex the corresponding IPv6 network configuration information option of the DHCPv6, or add the DHCPv6 IPv4 network server option; when multiplexing the corresponding IPv6 of the DHCPv6 When the network configuration information option is used, the IPv4 address of the IPv4 network server is carried by the IPv6 option.
  • FIG. 13 is a schematic diagram of a format of a packet carrying a new IPv4 network server address option in a DHCPv6 message according to a preferred embodiment of the present invention.
  • the packet format is as shown in FIG. 13
  • the option-code field identifies the code value corresponding to the IPv4 network server address option
  • Rsv field reserved field
  • Type field identifies the IPv4 server type, such as the DNS Server Cookie Server
  • different Type fields identify different IPv4 Server types, IPv6 address synthesis for the corresponding IPv4 server on the intermediate device
  • Option-len field Indicates the length of the option-value
  • Option-value field identifies the IPv4 address corresponding to the IPv4 network server type
  • the DHCPv6 message needs to be carried. Multiple IPv4 network server address options.
  • FIG. 14 is a schematic diagram of a system for synthesizing an IPv6 address according to a preferred embodiment of the present invention. As shown in FIG. 4, the system includes: a BRAS/AT64 device 1402, a DHCPv6 server device 1404, and an IPv6-Only terminal/home gateway device 1406. The system will be described below.
  • the BRAS/NAT64 device 1402 as a DHCPv6 relay intermediate device, is configured to receive a DHCPv6 message sent from a DHCPv6 server device, and listen to a network configuration information option in which each address information option is an IPv4 address;
  • the synthetic IPv6 prefix corresponding to the network configuration information option synthesizes the IPv6 address according to the IPv4 address in the network configuration information option and the obtained synthetic IPv6 prefix corresponding to each network configuration information option; further, the reported message is updated with the synthesized IPv6 address.
  • generating the corresponding IPv6 address network configuration information option by using the network configuration information option whose address field is the IPv4 address in the option, recalculating the information such as the packet length, and forwarding the DHCPv6 Reply message to the client device;
  • the DHCPv6 server device 140 supports the DHCPv6 option with the IPv4 address, and sends the DHCPv6 packet carrying the IPv4 address to the intermediate device BRAS/NAT64 through the DHCPv6 message.
  • Figure 15 is a schematic diagram of a synthetic IPv4 address of an IPv4 DNS Server in accordance with a preferred embodiment of the present invention.
  • the multiplexed DHCPv6 IPv6 option is used to carry the IPv6 address of the IPv4 DNS server.
  • Step S1502 The intermediate device BRAS/NAT64 receives the DHCPv6 message sent by the DHCPv6 server device, and listens to the network configuration information option in the network information option that configures the address field to be an IPv4 address, and detects that the IPv4 address of the DNS server is 66.1.
  • Step S 1504 The intermediate device BRAS/NAT64 obtains the synthetic IPv6 prefix corresponding to the DNS network configuration information option 2001: db8: 122::/96; Step S 1506: The intermediate device BRAS/AT64 is based on the IPv4 in the DNS network configuration information option Address 66.1.1.1 and the corresponding synthetic DNS network configuration information option corresponding to the synthetic IPv6 prefix 2001:db8: 122::/96, synthetic IPv6 address 2001:db8: 122::66.1.1.1; Step S1508: Intermediate device BRAS/ The AT64 uses the synthesized IPv6 address 2001:db8: 122::66.1.1.1 to replace the DNS network configuration information option whose original address field is the IPv4 address 66.1.1.1, recalculates the packet length and other information, and forwards the DHCPv6 Reply message to the client.
  • the intermediate device BRAS/NAT64 can obtain the synthetic IPv6 prefix corresponding to each network configuration information option through the local configuration information, or can be obtained from the centralized service by other means.
  • the synthetic IPv6 prefix corresponding to each network configuration information option may be the same or different, and is determined by the actual network deployment situation.
  • the intermediate device BRAS/AT64 serves as the DHCPv6 server device. If the DHCPv6 message of the device is used, the IPv6 address of each IPv4 network server is directly synthesized locally, and the synthesized IPv6 address or/and the IPv6 address are sent to the client device through the DHCPv6 Reply message. In addition, the client device does not perceive the IPv4 network.
  • the client device does not need to be upgraded by the system or the network.
  • the foregoing embodiment is only a specific embodiment of the disclosure.
  • the technical solution can also be applied to other application scenarios: IPv6-initiated TCP Session, SIP Flow Wait, here is no longer - repeat.
  • IPv6-initiated TCP Session SIP Flow Wait, here is no longer - repeat.
  • the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices.
  • they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)

Abstract

L'invention concerne un procédé et un dispositif de traitement d'adresse IPv6, un appareil relais de protocole de configuration de serveur dynamique v6 (DHCPv6), et un serveur de protocole de configuration de serveur dynamique v6 (DHCPv6). Le procédé consiste à : intercepter une option d'informations IPv4 dans une option d'informations d'un paquet IPv6 dont un champ d'adresse est une adresse IPv4 ; acquérir un préfixe IPv6 correspondant à l'option d'informations IPv4 ; et, d'après l'adresse IPv4 contenue dans l'option d'informations IPv4 et le préfixe IPv6, synthétiser une adresse IPv6. La présente invention résout les problèmes liés, dans l'état de la technique, au fait que des serveurs sont encore déployés dans un réseau IPv4 durant le processus d'intercommunication de réseaux IPv6/IPv4, et que la maintenance réseau est compliquée. L'invention permet ainsi de synthétiser automatiquement une adresse IPv6, de réduire efficacement la complexité de maintenance du système, et de simplifier significativement l'exécution de la transition IPv 4 à IPv 6.
PCT/CN2014/082755 2014-02-28 2014-07-22 Procédé et dispositif de traitement d'adresse ipv6, et appareil relais dhcpv6 WO2015127750A1 (fr)

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US15/121,064 US20160380963A1 (en) 2014-02-28 2014-07-22 Method and Device for Processing IPv6 Address, and DHCPv6 Relay Equipment
EP14883705.7A EP3113457A4 (fr) 2014-02-28 2014-07-22 Procédé et dispositif de traitement d'adresse ipv6, et appareil relais dhcpv6
JP2016554585A JP2017506862A (ja) 2014-02-28 2014-07-22 ＩＰｖ６アドレス処理方法、装置及びＤＨＣＰｖ６中継機器

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CN201410073262.0 2014-02-28
CN201410073262.0A CN104883407A (zh) 2014-02-28 2014-02-28 IPv6地址处理方法、装置及DHCPv6中继设备

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Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
EP3276920B1 (fr) * 2015-05-25 2020-01-15 Huawei Technologies Co., Ltd. Procédé, dispositif et système de traitement de messages
CN106559507B (zh) * 2015-09-29 2019-10-22 中国电信股份有限公司 IPv4重复地址检测方法和装置
EP3242466B1 (fr) * 2016-05-04 2019-04-17 Siemens Aktiengesellschaft Procédé de configuration de dispositifs de communication d'un système d'automatisation industriel et unité de distribution de données de configuration
CN110247998A (zh) * 2019-07-03 2019-09-17 北京宏图佳都通信设备有限公司 一种IPv4/IPv6数据传输处理方法和系统
CN113746944B (zh) * 2020-05-29 2024-05-14 台众计算机股份有限公司 IPv6网点管理方法及设备
US20220094664A1 (en) * 2020-09-23 2022-03-24 Avaya Management L.P. Method and system to enhance communication between an ipv6-only sip client and an ipv4-only server or client
CN113660357B (zh) * 2021-08-17 2023-10-27 烽火通信科技股份有限公司 一种IPv6双栈系统自动获取IP地址的方法和装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101692674A (zh) * 2009-10-30 2010-04-07 杭州华三通信技术有限公司 双栈接入的方法和设备
CN101848247A (zh) * 2009-03-26 2010-09-29 华为技术有限公司 实现IPv6主机访问IPv4主机的方法、获取IPv6地址前缀的方法和转换装置
EP2540064A1 (fr) * 2010-02-26 2013-01-02 Telefonaktiebolaget LM Ericsson (publ) Activation de mobilité ipv6 à l'aide de nat64
CN102938735A (zh) * 2012-11-15 2013-02-20 北京邮电大学 使用路由通告携带选项下发nat64地址前缀的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5387061B2 (ja) * 2009-03-05 2014-01-15 沖電気工業株式会社 情報変換装置、情報変換方法、情報変換プログラム及び中継装置
EP2413544A4 (fr) * 2009-03-26 2012-03-21 Huawei Tech Co Ltd Procédé permettant à un hôte sous ipv6 de visiter un hôte sous ipv4, procédé d'obtention du préfixe d'adresse ipv6 et dispositif de transcription
US8509244B2 (en) * 2009-08-14 2013-08-13 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for providing host node awareness for multiple NAT64 environments
JP5333095B2 (ja) * 2009-09-10 2013-11-06 沖電気工業株式会社 アドレス変換・プロトコル変換システム、並びに、トランスレータ装置及びトランスレータプログラム
CN102739809B (zh) * 2011-04-07 2015-07-15 中国电信股份有限公司 DNS64数据库、服务器、系统和IPv4/IPv6通信方法
US8995360B2 (en) * 2011-06-09 2015-03-31 Time Warner Cable Enterprises Llc Techniques for prefix subnetting
CN102843441B (zh) * 2011-06-24 2017-02-22 华为技术有限公司 控制地址配置方式的方法和设备
CN102255982A (zh) * 2011-07-21 2011-11-23 电子科技大学 一种IPv4/IPv6转换网关以及转换方法
CN104869065B (zh) * 2014-02-26 2020-04-21 中兴通讯股份有限公司 数据报文处理方法及装置
CN104883408A (zh) * 2014-02-28 2015-09-02 中兴通讯股份有限公司 一种处理NAT64前缀的方法、网络设备及DHCPv6服务器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101848247A (zh) * 2009-03-26 2010-09-29 华为技术有限公司 实现IPv6主机访问IPv4主机的方法、获取IPv6地址前缀的方法和转换装置
CN101692674A (zh) * 2009-10-30 2010-04-07 杭州华三通信技术有限公司 双栈接入的方法和设备
EP2540064A1 (fr) * 2010-02-26 2013-01-02 Telefonaktiebolaget LM Ericsson (publ) Activation de mobilité ipv6 à l'aide de nat64
CN102938735A (zh) * 2012-11-15 2013-02-20 北京邮电大学 使用路由通告携带选项下发nat64地址前缀的方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3113457A4 *

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JP2017506862A (ja) 2017-03-09

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